How to set vertical "Dashboard" for wall mount screen (not tablet)

Hi everybody!
Happy new year!

This is my first post in this community, and first I have to say that I am now hooked on HA, and learning a lot of new stuff everyday. But one thing I have not found out is how to make a vertical dashboard for screens that will be vertical mounted.

I have already setup screensaver mode, and most of the pictures are also in vertical mode. Everything works good on tablet as it rotates with the tablet, but how do I manually rotate when I use a on a wall touch screen?

Thank you so much for any help here.

Best regards